Journal of Research of the National Bureau of Standards
AbstractFactors affecting the (unwanted) seismic response of infrasonic microphones are indicated. Past measurements of ground motion deduced from the radiated atmospheric sound measured with infrasonic microphones are reviewed, and such measurements are compared with seismometer measurements of ground motion. Seismic motions caused by the Japanese earthquake of May 1968 are used in this example. The seismic response of the infrasonic microphone used for this measurement was experimentally determined and the results are presented. A simple method of compensating for interfering seismic effects on microphones is described.
CiteJ. Res. Nat. Bur. Stand. Sec. C: Eng. Inst., Vol. 75C, No. 1, p. 41
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